/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
System.
out.
print(addBinary
("11",
"1")); }
int i=a.length()-1;
int j=b.length()-1;
int carry=0;
while(i>=0 || j>=0 || carry==1){
int add=carry;
if(i>=0) add+=a.charAt(i)-'0';
if(j>=0) add+=b.charAt(j)-'0';
ans="" + (add%2) + ans;
carry=add/2;
i--;
j--;
}
System.
out.
print("ans=" + ans
); return ans;
}
}
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